﻿using Gonte;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;

namespace MyUtilitiesTest
{
    /// <summary>
    ///This is a test class for TupleTest and is intended
    ///to contain all TupleTest Unit Tests
    ///</summary>
    [TestClass()]
    public class TupleTest
    {
        private TestContext testContextInstance;

        /// <summary>
        ///Gets or sets the test context which provides
        ///information about and functionality for the current test run.
        ///</summary>
        public TestContext TestContext
        {
            get
            {
                return testContextInstance;
            }
            set
            {
                testContextInstance = value;
            }
        }

        #region Additional test attributes
        // 
        //You can use the following additional attributes as you write your tests:
        //
        //Use ClassInitialize to run code before running the first test in the class
        //[ClassInitialize()]
        //public static void MyClassInitialize(TestContext testContext)
        //{
        //}
        //
        //Use ClassCleanup to run code after all tests in a class have run
        //[ClassCleanup()]
        //public static void MyClassCleanup()
        //{
        //}
        //
        //Use TestInitialize to run code before running each test
        //[TestInitialize()]
        //public void MyTestInitialize()
        //{
        //}
        //
        //Use TestCleanup to run code after each test has run
        //[TestCleanup()]
        //public void MyTestCleanup()
        //{
        //}
        //
        #endregion

        [TestMethod()]
        [ExpectedException(typeof(ArgumentNullException))]
        public void TupleConstructorFirstNullTest()
        {
            Tuple<Object, Object> tuple = new Tuple<Object, Object>(null, new Object());
        }

        [TestMethod()]
        [ExpectedException(typeof(ArgumentNullException))]
        public void TupleConstructorSecondNullTest()
        {
            Tuple<Object, Object> tuple = new Tuple<Object, Object>(new Object(), null);
        }

        [TestMethod()]
        public void TupleComparisonTest()
        {
            Tuple<int, int> tuple = new Tuple<int, int>(1, 2);

            Assert.AreEqual(1, tuple.First);
            Assert.AreEqual(2, tuple.Second);

            Assert.AreEqual(tuple.GetHashCode(), tuple.First.GetHashCode() ^ tuple.Second.GetHashCode());
            Assert.AreEqual("First: 1, Second: 2", tuple.ToString());

            Tuple<int, int> tuple2 = new Tuple<int, int>(1, 2);

            Assert.IsTrue(tuple == tuple2);

            Tuple<int, int> tuple3 = new Tuple<int, int>(1, 1);

            Assert.IsTrue(tuple != tuple3);

        }
    }
}
